(1-alpha,3-alpha,4-beta,6-beta)-6-(3,4-Dimethoxyphenyl)-1,3-dimethyl-3,4-piperidinediol 128887-77-4 3,4-Piperidinediol, 6-(3,4-dimethoxyphenyl)-1,3-dimethyl-, (1-alpha,3-alpha,4-beta,6-beta)- BRN 4295327